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Definitions

bacteria

[bak-teer-ee-uh] / bækˈtɪər i ə /
NOUN
microorganisms
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“There’s no pathogenic bacteria correlating us to anybody,” said McAfee.

From Los Angeles Times • Apr. 2, 2026

Raw, or unpasteurized, dairy has not undergone the heating process that kills harmful bacteria while leaving nutrients largely intact.

From Los Angeles Times • Apr. 2, 2026

Under current procedures, urine samples must be cultured overnight so bacteria can grow before doctors can identify them and test antibiotics.

From Science Daily • Mar. 31, 2026

Scientists at TU Wien, working with data storage company Cerabyte, produced a QR code measuring just 1.98 square micrometers, which is smaller than most bacteria.

From Science Daily • Mar. 29, 2026

If the instruments and drainage tubes were not properly disinfected, they would carry dangerous bacteria deep into the body.

From "Ambushed!" by Gail Jarrow